9. The table shows the items and their individual prices that
Lakasha brought to donate for a charity. Altogether, she spent
$420. This is represented by the function 20x + 70y = 420.

its d. the first coordintaes are 10,32

step-by-step explanation:

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

[2, 2.5)

(2.5, 3]

step-by-step explanation:

i think its these two not sure [2, 2.5)

(2.5, 3]